Home / 22,147.95-30,548.97-13,188.54

Finding the Fourth Proportional to 22,147.95, 30,548.97 and 13,188.54

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Solution

The fourth proportional to 22,147.95, 30,548.97 and 13,188.54 is: 18,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,147.95 : 30,548.97 = 13,188.54 : x
  2. Step 2: Convert to fraction form
    22,147.95/30,548.97 = 13,188.54/x
  3. Step 3: Cross multiply
    22,147.95x = 30,548.97 × 13,188.54
  4. Step 4: Simplify right side
    22,147.95x = 402,896,312.80
  5. Step 5: Solve for x
    x = 402,896,312.80/22,147.95
  6. Step 6: Final answer
    x = 18,191.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.